Friday, December 27, 2019

Whelk Facts and Information

Whelks are snails with beautiful shells. If you see something on the beach that looks like a seashell, its probably the shell of a whelk. There are over 50 species of whelks. Here you can learn about characteristics common to these species. What Does a Whelk Look Like? Whelks have a spiraled shell which varies in size and shape. These animals can vary in size from under an inch in length (shell length) to more than 2 feet. The largest whelk is the trumpet whelk, which grows to over 2 feet. Whelk shells vary in color. Whelks have a muscular foot that they use to move and hold prey. They also have a hard operculum that closes the shells opening and is used for protection. To breathe, whelks have a siphon, a long tube-like organ which is used to bring in oxygenated water. This siphon allows the whelk to burrow in the sand while still getting oxygen. Whelks feed using an organ called the proboscis. The proboscis is made up of the radula, esophagus, and mouth. Classification Kingdom: AnimaliaPhylum: MolluscaClass: GastropodaOrder: NeogastropodaSuperfamily: BuccinodeaFamily: Buccinidae (true whelks) There are additional species of animals that are called whelks but are in other families. Feeding Whelks are carnivores, and eat crustaceans, mollusks, and worms—they will even eat other whelks. They can drill a hole into the shell of their prey with their radula, or may wrap their foot around the hinged shells of their prey and use their own shell as a wedge to force the shells open, then insert their proboscis into the shell and consume the animal inside. Reproduction Whelks reproduce by sexual reproduction with internal fertilization. Some, like the channeled and knobbed whelks, produce a string of egg capsules that maybe 2-3 feet long, and each capsule has 20-100 eggs inside which hatch into miniature whelks. Waved whelks produce a mass of egg capsules which look like a pile of egg cases. The egg capsule allows the young whelk embryos to develop and provides protection. Once they have developed, the eggs hatch inside the capsule, and the juvenile whelks leave via an opening. Habitat and Distribution The question of where to find a whelk depends upon what species youre looking for. In general, whelks may be found in many parts of the world, and are usually found on sandy or muddy bottoms, from shallow tide pools out to waters several hundred feet deep. Human Uses Whelks are a popular food. People eat the mollusks muscular foot—an example is the Italian dish scungilli, which is made from a whelks foot. These animals are also collected for the seashell trade. They may be caught as bycatch (e.g., in lobster traps), and they may be used as bait to catch other marine life, such as cod. Whelk egg cases may be used as a fishermens soap. The veined rapa whelk is a non-indigenous species that have been introduced into the U.S. The native habitat of these whelks includes waters in the western Pacific Ocean including the Sea of Japan, Yellow Sea, East China Sea, and the Bohai Sea. These whelks were introduced into the Chesapeake Bay and may cause damage to native species. Sources Conley, C. Whelks. Edible Vineyard. Issue 6, Early Summer 2010.Whelks. Maine Department of Marine Resources.Save the Bay. Whelks.Shimek, R. L. Whelks. Reefkeeping, Vol. 4, No. 10. Nov. 2005.Smithsonian Marine Station at Fort Pierce. Knobbed Whelk.Wilcox, S. The Unknown Life History Characteristics of the Channeled Whelk.

Thursday, December 19, 2019

Android Os Security Advantages and Disadvantages

Android OS Security: Advantages and Disadvantages In the field of computing, few inventions, innovations or technological improvements, have been moving quite like wireless technology. With the advent of fourth generation cell phones and networks (4G), there have literally been leaps and bounds made in the realm of personal computing, productivity and data sharing. It is this increased connectivity both in our personal and business lives that introduce risks to intrusion, corruption or theft of data, or in the worst case, access to personal data that would lead to identity theft. In the business realm, this translates to problems for firm infrastructure and exposure to proprietary leaks, loss of customer data, or damage to the†¦show more content†¦However, even this technique does not prevent issues with the application after installation with the proper permissions (Bojinov, 2011, 129). Additionally, it seems that a large number of applications use multimedia, location, and/or private information suspiciously. In an exa mple of this, 30 random applications from the Android Market were tested and half of these used information suspiciously (Enck, 2010). Considering this information, it is further troubling that research has indicated as many as one-third of applications seek permissions that are greater than are actually needed (Chin Felt, et al, 2010). References Anagnostakis, K., Bos, H., Homburg, P., Portokalidis, G. (2010). â€Å"Paranoid Android: Versatile Protection for Smartphones†. Proceedings of the 26th Annual Computer Security Applications Conference. New York, NY: ACM. Baliga, A., Bickford, J., Ganapathy, V., Iftode, L., O’Hare, R. (2010) â€Å"Rootkits on Smart Phones: Attacks, Implications and Opportunities†. Proceedings of the Eleventh Workshop on Mobile Computing Systems and Applications. New York, NY: ACM. Bojinov, H., Boneh, D., Cannings, R., Malchev, I. (2011). â€Å"Address Space Randomization for Mobile Devices†. Proceedings of the fourth ACM conference on Wireless Network Security. New York, NY: ACM. Chin, E., Felt, A.P., Hanna, S., Song, D., Wagner, D. (2011). â€Å"Android Permissions Demystified†. Proceedings of the 18th ACM conference on Computer and communications security.Show MoreRelatedComparison Between Android And Ios1248 Words   |  5 Pages COMPARISON BETWEEN ANDROID AND IOS Research paper By RETINENI DAYAKAR Student ID: 515480 Subject: BA-501 MANAGEMENT COMMUNICATIONS Current Quarter: Summer 2016 Professor: Dr. Gaylon R Crawford, Ph.D California university of Management and Sciences (CALUMS) Contents 1. INTRODUCTION 3 2. ANDROID 3 2.1 History 3 2.2 Android Versions 4 3. IOS 5 3Read MoreMobile Operating Systems962 Words   |  4 PagesMobile Operating Systems (Mobile OS) Introduction: A mobile operating system, also called a mobile OS, is an operating system that is specifically designed to run on mobile devices such as mobile phones, smartphones, PDAs, tablet computers and other handheld devices.Much like the Linux or Windows operating system controls your desktop or laptop computer, a mobile operating system is the software platform on top of which other programs can run on mobile devices. The operating system is responsibleRead MoreVirtualization Is A Modern Day World Of Computing Essay1450 Words   |  6 Pages(Kudryavtsev, Koshelev, Avetisyan, 2013). The purpose of this report is to compare and contrast the top three brands of virtualization software, as well as examine the major pros and major cons of each brand. It will also explore major advantages and major disadvantages that the organization might enjoy if it utilizes virtualization software. Comparison and Contrast of Virtualization Software Brands Virtualization software offers an infrastructure that allows companies to accommodate new waves ofRead MorePrinciples Underlying Operating System ( Os )1586 Words   |  7 PagesPrinciples Underlying Operating System: An Operating System (OS) is a manager which manages hardware and software components and makes them usable to the end user. There are many operating systems available to use such as Windows, Android, Linux and Apple OS. All operating systems (OS) are designed with some fundamental principles keeping in mind. Every operating system makes the hardware to be used and generating high performance. Security is one of the fundamental principles which have to be takenRead MoreOperating Systems And Operating System862 Words   |  4 PagesWindows Vista, Windows Touch versions. With each upgrade, there were many advantages to the Microsoft Windows operating systems. Instead of having the command line, it was replaced with an interface that will navigate you to where you need to go. From the Control Panel to the applications, there are so many options at your fingertips. Windows operating system changed the era of computers for the good. However, the disadvantage to Windows, was the constant upgrading through the nineties. WindowsRead MoreThe Brand of Mobile Phone Using Android Os5271 Words   |  22 PagesContent What is Android OS? 3 Founder amp; Background of Company 4-5 The Brand of Mobile Phone Using Android OS 6 -8 Functions amp; Features of Android OS 9amp;10 Advantages and Weakness of Android OS 11 Comparison of Operating System 12-14 Conclusion 15 Reference 16amp;17 Appendix 18-22 Executive Summary In the first place, the purpose of this assignment is to introduce about what is Android operating system. In 2005, the initial developer of the software, Android Inc acquiredRead MoreSecurity Assessments Of Applications Ios Architecture Supporting3625 Words   |  15 Pages IOS VAMSHI National university Julie Kidder Paper due day is Monday Introduction In the past year , the performance of consultants MDSec in a growing number of security assessments of applications iOS architecture supporting. Where data security is paramount , and specifically the banking sector Retail / Business. Smart phones have become commonplace not only in March, consumer Kitts but now also in the organization. Smartphones combine conventional mobile Features such as withRead MoreCisco Systems, Inc.1431 Words   |  6 PagesCisco Systems, Inc. A potential competitive disadvantage for Cisco is supply chain issues. Supply chain issues such as delays in order fulfillment can affect Cisco’s business because the company is significantly dependent on suppliers and contract manufacturers for certain components. Due to its outsourced manufacturing strategy, Cisco has limited control over the delivery schedules and has suffered from component shortages as a result of manufacturing process issues. Additionally, the earthquakesRead MoreReport on Near Field Communications1392 Words   |  6 PagesIntroduction 1 1.1. What is NFC? 1 1.2. History of NFC 2 1.3. Use of NFC 3 1.4. Comparison with Alternative Technologies 3 1.5. Software 3 1.6. Hardware 3 1.7. Basic Functioning 4 1.7.1. Radio Frequency Operation 4 2. Applications 4 3. Advantages and Disadvantages 4 4. Conclusion 4 5. References 4 1. Introduction Near Field Communications (NFC) is a set of standards for smartphones and similar devices to establish short range wireless communications. It allows the transfer of information such asRead MoreMobile Operating Systems3733 Words   |  15 Pagesoperating systems in today’s world, while also giving a brief overview of the important mobile OS’s that are popular in the US. Advantages and disadvantages are analyzed within each mobile OS and will give an insight as to which mobile OS caters to a user’s or business need. This is done by evaluating the smartphone market (market share, hardware sales, etc.) and comparing each mobile OS to determine which one provides the best features and customization that’ll cater to each user’s needs. Overview of Mobile

Wednesday, December 11, 2019

Job Satisfaction and Organizational Commitment

Question: Have influence on the nature and process of the change. Respect the person who is championing the change. Expect the change will result in personal gain. Answer: To elicit positive reactions, the ABC Organization should adapt to change based on job satisfaction and organizational commitment. These work related components need to focus on different areas like communication, principal support and management competence (Vakola, Armenakis Oreg, 2013). However, to achieve positive responses it is important that there should be compensation involved with a change in job design and a focus on well-being. The change undertaken will lead to stimulate responses by changing beliefs and instilling coping behaviors in the organization to have a pleasantness reaction (Petrou, Demerouti Schaufeli, 2015). References Petrou, P., Demerouti, E., Schaufeli, W. B. (2015). Job crafting in changing organizations: Antecedents and implications for exhaustion and performance.Journal of occupational health psychology,20(4), 470. Vakola, M., Armenakis, A., Oreg, S. (2013). Reactions to organizational change from an individual differences perspective: A review of empirical research.The Psychology of Organizational Change: Viewing Change from the Employee's Perspective, 95-122.

Wednesday, December 4, 2019

Theory of Knowledge Essay Summary Example For Students

Theory of Knowledge Essay Summary Other examples include: blindness preventing one from seeing things, Deafness preventing a person from hearing. Overall, our senses have a lot of room for inaccuracy in countless situations. However with technology there are alternative ways to work around these impedes. Such as using a thermometer to give accurate readings of the temperature instead on guessing what the temperature might be. However, all of these ideas do not necessarily mean we should never rely on our senses. Many of us are able to recognize if a storm is about to begin, or even if its going to rain soon. We will write a custom essay on Theory of Knowledge Summary specifically for you for only $16.38 $13.9/page Order now Many of us can estimate the eight of something with fair accuracy. I my self has done with several times while traveling and didnt have access to a weighing scale. Senses can also be the right answer when in a situation where one has to take sudden actions. Be it in a volleyball game when the player has to decide which way to play the ball or deicing whether to eat apple that looks dirty and poisoned. Since we cannot base all our opinions and judgments solely on senses, reasoning plays a key role in determining truth. We use our senses to determine that a given phenomena occurs, and reasoning to determine why that phenomena occurred. Reasoning is evident especially in mathematics and the sciences. For example, Gregor Mendel observed the patterns visible in generations of organisms. Mendel then conducted experiments in which he cross-pollinated several varieties of pea plants and discovered that genetic traits are passed between successive generations in specific and regular ratios. Using those ratios, he formulated the laws of heredity, which enable us to predict which traits, and in what proportions, will show up in a particular generation, based upon the traits that have appeared in preceding generations. Using this experiment we can draw to a close that the sole use of senses without reasoning is not sufficient evidence of truth, and reasoning without the use of senses is incomprehensible; if we were to not use or trust our senses at all, we would have observed or obtained nothing to reason in the first place. In conclusion, our five senses sight, smell, taste, touch, and hearing are critical in observing the world around us and interconnecting the various ways of knowing. The brain constantly uses reasoning to apply meaning to the observations made through the use of our senses. However, one should acknowledge hat there are certain situations in which our senses can lack accuracy. We should not be quick to trust our senses when they conflict with each other, when they conflict with another individuals senses, or when they are being degraded by external factors. However, we should certainly trust our senses to give us knowledge and truth when we can back them up with sufficient reasoning or experience. Therefore, it can be said that all known truths have been obtained through the use of senses together with reasoning. We should trust our senses to give us truth only when the knowledge we obtain is public, independent of anyones belief, eternal, and can be justified with reasoning. Word count: 1180 Show preview only The above preview is unformatted text This student written piece of work is one of many that can be found in our International Baccalaureate Theory of Knowledge section.